Gold on display for the permanent exhibit “Treasures of the Girona,” Ulster Museum, Belfast. It is not Leprechaun gold, certainly.
“Lay not up for yourselves treasures upon earth, where moth and rust doth corrupt, and where thieves break through and steal: But lay up for yourselves treasures in heaven, where neither moth nor rust doth corrupt, and where thieves do not break through nor steal: For where your treasure is, there will your heart be also.” Matthew 6:19-24“
Copyright 2022 Michael Stephen Wills All Rights Reserved
Use your pinky finger to apprehend the sky dome. Imagine yourself at sea, out of sight of land, on a calm day. Keeping your arm extended, place your pinky-tip on the horizon due east, raise your arm directly overhead. The average sized pinky-tip will have spanned 90 of its lengths. The distance measured from the horizon to directly overhead, the zenith, is 90 degrees of sky dome, about one pinky-width per degree, one-fourth of the entire 360 degrees of sky around your spot on the globe.
The apparent width of the sun disk from earth covers 1/2 degree of sky dome. The disk center point moves 15 degrees per hour (360/24 = 15). Using these facts to estimate time to sunset is relatively straightforward. Estimating time to dawn from the sky is more difficult. This graphic, “Twilight-dawn subcategories,” is a way to grasping what happens. Your position on the earth globe affects the experience. For example, at northern latitudes above 60°34′ summer nights never become darker than civil twilight because the sun’s midpoint never drops lower than 6 degrees below the horizon. Civil twilight lasts all night long summer times in parts of Sweden and Finland.
Attribution: “Pmurph5, CC BY-SA 4.0 , via Wikimedia “
The date-time stamp on the first photograph of this series is 6:46:23 am, Cocoa Beach sunrise for February 1st was 7:09:40, 00:23:17, 23.283 minutes in decimal notation, later. This duration divided by 60 minutes in an hour and multiplied by the sun’s apparent velocity across the sky (15 degrees per hour) and minus the .25 degree between sun’s center and disk edge, gives the sun’s center as 5.57 degrees below the horizon: this is a photograph of the sky a minute or so after the sun passed civil dawn into civil twilight. I am not more exact because this calculation does not account the deviation of the sun path from due east at this latitude, lengthening civil twilight duration by almost a minute.
Edge of Civil Twilight: dark clouds soon to take light
The following photograph is time-stamped 7:05:06, 4.567 minutes until sunrise, sun center is just below the horizon, setting the dark clouds of the previous photograph fleetingly on fire.
Civil Twilight at the edge of sunrise
Sunrise has passed in the following photographs, obscured by clouds and making for a great light show. Enjoy!!
References
“Dawn” Wikipedia page, the graphic “Twilight-dawn subcategories,” and the descriptions of subcategories came from this page.
Copyright 2022 Michael Stephen Wills All Rights Reserved
When Pam read my post “Black Skimmers Feeding” she asked, “Where is the photo of resting Skimmers?”
To answer her question, I looked through Cocoa Beach photographs and discovered I did NOT capture the Skimmers resting. Instead, here are a related species, the Royal Tern (scientific name: Thalasseus maximus), whose behavior is similar in that it exclusively feeds from the water. There was a wind that morning and these individuals face into it. These birds are, from a human point of view, well behaved, unlike the opportunistic gull.
I searched around the web for identification of this gull without success.
It dines on a dead fish washed up by the surf. In my previous posting I used the word “grifting” to describe gull behavior, again this is from the human point of view. Gulls are notorious for stealing food from unwary beach goers, brazening walking over to unguarded chips (any kind), for instance, grabbing them and flying off. If the chip stash is large, this sets off a nasty feeding frenzy when tens of gulls swoop in and grab.
Here is a series of photographs, demonstrating this behavior.
With grandchildren in the Miami Area and a sister in Daytona Beach, Florida was on my mind this morning and memories of this beautiful experience on Cocoa Beach came to mind. After an eventful day touring the NASA launch control center, Pam and I took an evening walk during the golden hour, me with camera in hand.
Full in expectation of catching the passing scene with lots of shot I set to full size jpeg mode using a Sony Alpha 700 dslr with a DT 18-200mm f3.5-6.3 lens. The light was exceptional, so I did not expect much post production work.
My first impression was of the line of cruise ships heading south from Port Canaveral, the starboard side lit perfectly behind human denizens of the Cocoa Beach shore, in full enjoyment mode. A synergy of the images struck me. I took a few experimental shots then, as we progressed down the beach front this unusual tableau came into view.
Newlyweds on Cocoa Beach give rapt attention to a distant cruise ship, it looks like an elegant child’s toy.
The session proceeded smoothly and professionally, it was a pleasure to watch. I felt no compunction for capturing these private moments on a public beach, the transcendence of the images reflect well on all participants.
Bride and groom pose while photographer composes the shot, her assistant behind.
Each of the 603 steps between the Skellig Michael dock and the monastery evoked contemplation, caution, wonder and gratitude.
Contemplation: how did the monks manage to survive while placing the steps? It can only be by a careful division of labor once a survival tripod was build. By tripod I mean the basics food, shelter, warmth.
Caution: as with any steps, for a 60+ person I have learned the hard way falls take a long time to recover from.
Gratitude: for the opportunity, growth and knowledge afforded by travel.
Wonder: every step offered a new vantage and discovery.
Puffins were on my mind for most of the lower steps being immediately at hand, almost underfoot, constantly. Underfoot, not in a obnoxious way. Underfoot in being right there, unabashed, going about the business of life. Pam and I were lucky, Puffin wise, for the weather. Sensible birds, when the visibility is low Puffins stay close to the burrow, making improvements and socialize with neighbors.
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Bad News: Atlantic Puffin populations are on a precipitous decline across Ireland and British Islands. There are talks of a population collapse. Researchers enlisted assistance from wildlife photography enthusiasts with outstanding results released in 2017. The photographs showed parents returning with less nutritious fish. The stress on Puffin populations follows the decline of fish stocks from over fishing. I listed two references at the end of this post.
The disturbing element to our experience was not one of the birds flew in with a catch. On second thought, this is not unexpected. Late May the eggs are laid and under incubation. The individuals in these photographs were feeding only themselves. If we returned mid-June there would be chicks to feed.
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Puffin with an inquisitive attitude
Why do we love Puffins? We see reminders of ourselves. The expressive large eyes, over a striking beak and there is something expressive about the birds’ body movements. Don’t you almost know what’s on the mind of this fellow? “What’s going on, over there?”
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A colony of nesting puffins on a flowering cliff of green.
Puffins are small birds, the size of a human hand. This colony returned in late March or early April, each breeding pair claiming a nesting site. The coloring of the beak happens during breeding. The bird molts while at sea during the winter, the beak and other brightly colored facial characteristics are lost.
Michael Skellig puffins in social setting on cliff with burrows and flowers.
Puffin sexual differentiation is unique among birds. The coloring and markings are identical between males and females. Males are somewhat larger than females is all.
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Soft soil covering the flanks of Skellig Michael is the site of age old Puffin colonies.
Here is Puffin nesting behavior up close. I did some research on the flowering plants surrounding the burrows and am not sure. I believe the white flowers are a mixture of Sea Campion and Sea Mayweed.
As far as my photographic technique. There are two sets of Puffin shots from Skellig Michael. For the the walk to the top, the monastery site, I used the lighter Sony Alpha A700 dslr with a Sony variable lens, DT 18-200 mm F3.5 – 6.3. On top, I switched to the Canon EOS 1Ds Mark III and, for the descent, fitted a Canon EF 200mm f/2.8L USM lens.
The shot above and following are the Canon, taken on descent. Prior shots are the Sony, taken on ascent.
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Puffin Entering Burrow
Puffins have striking black and white plumage and leg color some describe as “tangerine.” Tangerine? I guess. Here an individual ducks into the burrow.
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A grouping of Michael Skellig puffins, the foremost with an attitude of regard.
I did not spend a great deal of time in any one spot, being time limited and needing to get back to the boat. Don’t recall very much social interactions between individuals, other than this perching together on the rocks. The foreground Puffin seems to take the behavior of another bird to task.
The planet we call Venus has ancient associations with fertility goddesses. The link has persisted at least from the 1600 century B.C. inscribed on Sumerian cuneiform tablets. Three thousand years later the Italian artist Botticelli created in tempura paint on canvas the image of Venus rising from the sea, as the planet Venus does today.
“The Birth of Venus” by Sandro Botticelli, c Late 15th century, Public domain, via Wikimedia Commons
Venus Rising
Here is Venus rising from the sea at dawn January 2022, at its brightest and most beautiful. Some mistake this new light in the east for airplane lights; the bright disk of Venus is 25 times brighter than Sirius, enough to cast shadows at night. As Venus proceeds in its orbit, the planet alternately sets after the sun and rises before it, seemingly appearing new each time.
This February I caught a newly risen Venus in this IPhone 7 video, reflected in the waves. It seemed to be a flashing headlight on the beach, the Venus reflection came and went with the passing waves. Venus is the upper, the reflection is beneath. Use the lower right control for the full view.
Looking from his window June 1889, Vincent VanGogh included Venus in his “Starry Night” painting, seen to the right of the Cypress tree.
Detail“Starry Night” By Vincent van Gogh – bgEuwDxel93-Pg at Google Arts; Culture, Public Domain
Here is a closer view of Venus last January, the planet disk is apparent, unlike even the closest stars, Venus is seen as a whole object. Click on image for a full view.
Venus and Mars
Venus and Mars shared 2022’s pre-dawn winter sky. Click on the first image for a full-size view. Mars is seen above the palm tree stump, on the right. In this photograph, from early February, Venus and Mar apparently moved closer. The closeness is an illusion, the planets are millions of miles apart, on either side of Earth’s orbit. Click on the photograph for a full-size view, Mars can just be made out to the right and above Venus.
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This crop clearly shows the brightness of Venus compared to Mars.
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Copyright 2022 Michael Stephen Wills All Rights Reserved
An early thought of mine, as a child, was to wonder, “How large does a person grow?” If growth was perpetual, there was no end to how large I will become; yet, tested against observed reality, “Why was it the case this was unlikely?” Years later, when recalling this, I understood my intuition touched upon the logarithmic spiral and mollusk shell.
Three Scallops and One Tallin
Sea Oat stalk, photographed above, after it dries slowly in the sun and wind, curls into a logarithmic spiral. One two dimensional spiral may be compared to another by measuring the rate and direction of opening, the increase in distance between the part closer to the source and the outer swirl. The growth of all shells follow a logarithmic spiral in three dimensions where the progression from a staring plane, as well as the direction, up or down from the plane, is an element.
Sea shells give evidence to my question of “how large can one grow.” The size of each of the millions encountered on a beach is an example of a life ended. Each of record of the length and character of the organism. For example, a close inspection of the bottom shell of the above photograph, a tellin of the family Tellinidae, reveals the spiral is growing toward the surface of the sand. Imagine wrapping your hand around the outer edge of the tellin with your thumb pointed down.
Each of the four shells of the above photograph had a mate, were one of a pair. Types of shells share characteristic pair symmetries. For example, a pair of tellins display a type of asymmetry called chirality, also called “handed-ness” after the same property of your right and left hands. One shell half (from the same individual) is the mirror image of the other, each unbalanced as the growth spirals toward opposite directions.
Asymmetry, halves from different individuals
When I started beachcombing, examining collected shells I did not have a pair from the same individual and incorrectly concluded direction of growth was unique to an individual. The ribbing of the above two shells illustrate three concepts: the logarithmic spiral growth pattern, chirality, as well as how I came to that wrong conclusion: that two individuals can grow in different directions. It was a logical hop to understand how, to make two shells hinged at the source of the growth spiral, each individual requires two halves, each a mirror image of the other. That every member of the species demonstrated the same asymmetry, each half grows in the opposite direction.
Asymmetry, attached matching halves
The above photograph shows attached matching halves. The attachment point was a surprise: the apparent source point is not attached to the ligament joining the halves? I have yet to understand this. Do you?
Beauty
The association of beauty with scallop shells bridges thousands of years. For example, a fresco of the Roman goddess Venus, born from the ocean riding a shell, was unearthed from Pompeii. The living organism is not part of the story, just the shell. Why the scallop? My answer is, “Each half is completely, in itself, symmetrical.”
The top three shells of the first photograph are scallops. The first and last, broken by the waves, are missing parts. The middle scallop, small and off-white, is complete. Place an imaginary line down the center and each side is identical. Applying the real world (i.e., physics) to myth, a scallop shell allows the goddess to move forward in a straight line. Sailing an asymmetrical shell, she moves in an eternal circle.
An object with symmetry is visually complete unto itself, self-contained; functionality aside, one scallop does not required a partner. The paired shells are interesting in they do not match, one is deeper, it encloses more volume. The deeper side rests under the surface, allowing the top halve to present a lower profile the better to hide from predators.
Calico Scallop Shell
The scallop echoes the beauty of Venus. Symmetry enhances human features (earch “Venus (mythology)” for images of her face through the ages), though it does not define beauty. An overly symmetrical face seems strange. I will close with an extreme example, the other day I came upon this beach crab wandering around in the daylight. Symmetry does NOT enhance the alien eyestalks, menacing claws, a pallid, tough exterior. Safe travels, little one.
Copyright 2022 Michael Stephen Wills All Rights Reserved